.global _start
    //exposes a symbol called start to the assembler
.intel_syntax noprefix

//See: https://www.youtube.com/watch?v=6S5KRJv-7RU
//See: https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/

_start:
    //write call (sys_write)
    mov rax,1
        //sys_write system call
    mov rdi, 1
        //unsigned int fd = 1 (stdout)
    lea rsi,[hello_world]
        //load effective address (lea) into rsi of hello_world data
    mov rdx, 14
        //size_t count excluding null terminator
    syscall

    //exit call
    mov rax, 60
    mov rdi, 33 
    //return result (must be "rdi" not "rdx" - how are these registers named?)
    syscall 
    //apprently int 80h interrupt is also syscall?

hello_world:
    .asciz "Hello, World!\n"